package cn.tedu.sp02.controller;

import cn.tedu.sp01.pojo.Item;
import cn.tedu.sp01.service.ItemService;
import cn.tedu.web.util.JsonResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Random;

@RestController
@Slf4j
public class ItemController {

    @Autowired
    private ItemService itemService;

    @Value("${server.port}")//注入配置的端口号
    private int port;


    //获取商品列表, 商品列表封装在 JsonResult 对象中，在返回给客户端
    //转换的json格式： {"code":200, "msg":"port=8001", "data":商品列表数据}
    @GetMapping("/{orderId}")
    public JsonResult<List<Item>> getItems(@PathVariable String orderId) throws InterruptedException {
        log.info("获取订单的商品列表，orderId="+orderId);

        //90%概率，执行随机延迟
        if(Math.random()<0.9){
            //随机延迟时长[0,5000]
            int t = new Random().nextInt(5000);
            log.info("延迟："+t);
            Thread.sleep(t);
        }



        List<Item> items = itemService.getItems(orderId);
        JsonResult r = JsonResult.ok().msg("port" + port).data(items);
        return r;
    }

    @PostMapping("/decreaseNumber")
    public JsonResult<?> decreaseNumber(@RequestBody List<Item> items){
        itemService.decreaseNumber(items);
        return JsonResult.ok().msg("减少商品库存成功");

    }






}
